One of the Celtic fans filmed singing about murdered soldier Lee Rigby has been identified as the son of an Irish Republican sent a nail bomb in the post. Aidan McAdam, 23, sang “F*** Lee Rigby, he isn’t f****** drumming any more” in the sickening clip. The disgraceful video was filmed in the streets of Sunderland, where Celtic were playing a friendly match against the Championship side last weekend.

McAdam, from Coatbridge, has been vilified on social media by fellow Celtic fans and supporters of other clubs. And today, the Daily Record has revealed that he is the son of Francis McAdam, 51, who worked at Republican group Cairde na hEireann’s shop in Glasgow when a nail bomb was sent there twice in 2012.

The clip lasts less than a minute and shows men – some wearing Celtic jerseys – walking down a street singing the offensive song. Lee’s heartbroken mum told the Scottish Sun : “I haven’t stopped crying since I saw that video. She said: “Celtic need to denounce these scum wearing their team’s shirt and apologise for what they have done. Lee never did anything to hurt them but they forget he was flesh and blood, my only son. He’s not just a news story or a name to be bandied about in spite.”